Door spring



T. H. FOLLIOTT.

, l nooR SPRING.

APPLICATION FILED MAR. I4, I92I. 1,413,717. Patented Apr. 25, 1922.

T'iiais rimini? rornrorr, or MAiviro'iglil, elimina;

'boon sfratto;

fication.

. Ther vinvention relates toimprovements in door `sprfii'igs andan `object of the invention isto provideadoor'sprin'g which can beset to hold the door'either''closed or Yopen as ocdownwardly;

1casion requires.:

'A lfurther object is to construct thel appliance in a simple, durableand inexpensive manner land'so that it can be readily attached to Vexisting do'ors -and frames and can `be relied upon at Aall times 'to 'do the work for which it is designed.

'A further object istoarrange the appliance adjusted to `suit conditions.

VJ ith the above more important objects in view the-invention consists essentially in the arrangement'and construction of parts hereinafter more particularly Adescribed and later 'pointed out in the appended claims, reference being had to the accompanying drawing in which:'- i

I Ti'g. 1 is a vsideA view of thevapplianceras it appears in luse Iand set to normally vhold th so that 'the various rsprings. employed can be Fig. 2 is a plan view of 'the p'ai'ts'as they v [4`i`g. 3 is a side view ofthe appliance as it appears 'on the door and set to hold the door open. f

Fig. 4 is a plan view of the'parts as they appear infFig. 3.

Fig; 5 an enlarged detailed vertical sectional View through 'the 'main spring of the appliance. v

Fig. '6 'is an enlarged detailed horizontal 6-6 Fig. '3, and looking 'sectional View at vView through the guide rod and showing the ence indicata Corresponding parts the several figures:

According" to present 'practice doors such as screen doors are held normally'closed by the action of'a spring applied usually at the hinge side of the-door and operating `to hold the door normally closed. -It is sometimes desirable howeverl :to have theV door remain open and',` in the majority of cases Such Vis done 'by blocking the door with Aa weight or providing a special hook and'cateh whereby L'the do'orcanbe positively Vheld open against the action of the'spring.

-\ According tomy Iinvention howeverI construct my spring so that it can be used for the double.. purpose, either that of holding the ldor closed o r'of holding'itopen, which,

is an important advantage. i. Referring now tothe drawing f1 .represents lthe customary door frame and 2 .the-door mounted in the frame and carried by the usual hinges, one of which is indicatedjat v3. 4i is the jamb strip .against which the rdoor closes. In the'pres'ent instance they door is showntasascrerendoor and presents; centrally disposed Vcross strips l5 and `6'. ",7 vis a fastening plate securelyfas tened Ias .by wood screws indicated atv 8 yto 4 the door iframe on thehingeside and aligned with the strip 5. Thel fastening plate is formed with van outwardly directedexten` 'sion 9 which Acarries pivot bolt 10. q On the bolt I mount'pivotally a bracket 11 having the ends 12and'13 thereoi'bent in the samefdirecl tidn and at rijghtangles to theJ body part and providing bearing arms for a'comparatively long V100113314 fitted atone'end with a head :l5-fand 'atx nthe other with Aa wing nut 16. Here it will be observed that Athe pivot bolt l() is immediately adjoining the endV 12 of the bracket. On the bolt 14 and between the arms' I mount rotatablya sleeve '17 which is formed integral ywith an arm v18 extending *y Vtowards the door in advance of the strip 5.

vwith atongue 2,3 passinfgthr'oulgh aslot 24 inthe 'arm and 'entering one or otheruofh the openings between the teeth of the WhL., i lThis locking: plate isjheld -inpiace bythe spring 25 having one end hooked around the wing nut. On the sleeve I mount a coiled arm 18 and the other end entered into one or other of the openings between the teeth of the wheel 21. rihe latter end of the spring is shown best at 26 Fig. 6. By this arrangement it is possible for one to increase or decrease the tension ofthe spring as he can iirst set the toothed wheel as he wishes and then lock the tongue to hold the toothed wheel locked in that set position.

' This 'adjustable spring locking arrangement is now in use and is not of itself new, being simply herein shown as a menas for adjusting the tension of the spring.

With the bracket set in what might be termed the up position or as shown in Fig. 1 the spring is acting to forcibly throw the arm 18 towards the door and to resist outward pull. The roller 20 rides a shaft or rod 27 carried by and spaced from the bar 5 and running lengthwise thereof. 28 and 29 are cushioning springs mounted on the rod and 30 is acollar slidably mounted on the rod and provided with a jamb screw 31 whereby it can be Xed in any adjusted position. Y

According to the above arrangement and with the parts set asin Figures 1 and 2 of the drawings, it will be obvious that the spring 25 acts-to press the arm 18 towards the door and the arm acting through the roller and rod holds the door closed.

When the door is opened byone passing through the arm swings outwardly against the action of the spring 25 Vand the roller rides in and out on the rod. One can adjust the spring 29 by setting the sleeve 30 so that the said spring will act against the spring 25 and cushion the door against slamming when it is approaching closed position.

If one desires to have the door remain open all that he requires to do is to swing the bracket downwardly from the position it has in Fig. 1 to the position it occupies inU Fig. 3. In doing this one reverses the action of the spring 25 as in shifting thebracket the arm is swung around to the inner side of the rod and acts under the action of the spring 25 to swing the door open and hold it so. The spring 28 acts as a cushion for the door when it is approaching the open position. y

l might here explain that in Figures 3 and l of the drawings l have shown the door as closed. This is not a correct position as, as .shown the spring 25 would causethe opening `ofthe door. However, one can consider the door held against opening in so far as these views are concerned.

What l claim as my invention is 1. The combination with a hinged door and door frame, of a reversible bracket pivotally attached to the door frame, a spring actuated pressure arm carried by the bracket on the door in the reverse position of the bracket.

2. The combination with a hinged door and door frame of a bracket pivotally attached to the door frame and vertically swingable, a spring pressed pressure arm carried by the bracket and extending to the outer side of thedoorymeans connecting the extending end of the arm to the door whilst allowing oi end and rotary movement ofthe arm in respect to the door, said arm being designed in one position of the bracket to eiiect an inward pressure on the door and in. the other position of the bracket an outward pressure on the door.

3. The combination with a hinged door and door frame, of a horizontally disposed guide rod secured to and spaced from the door, anl arm extending from the frame to the guide rod and having the end attached to the guide rod, the attachment permitting of a relative end and rotary Vmovement of the arm in respect to the rod and reversible spring pressure means carried by the door frame and operating on the arm.

4f. The combination with a hinged door and door frame, of a bracketpivotally attached to the door frame and vertically swingable, va spring actuated pivoted pressure arm carriedv by the bracket and extending in advance oi' the door, a horizontally disposed guide rod spaced from and secured to the door, means connecting the pressure arm to the guide rod, said means permitting of theL rotary rand endwise movement of the pressure arm in respect to th'e'guide rod, said pressure arm in one position of the bracket being` outside the guide rod and vin the other position of the bracket between the guide' rod and the door;

5. The combination with a hinged door and door frame, oi a bracket pivotally ati tached to the door frame and vertically swingable, a rotatably mounted sleeve carried by the bracket7 a pressure arm extending from the sleeve towards the door, a pressure spring mounted on the sleeve andr envgaging the pressure arm and the bracket,

a horizontally disposed guide rod secured to and spaced from the door and means'connecting the extending end of the pressure arm to the guide rod, said meanspermitting ot an endwise and rotary movement ofthe I1,413,717 u l 3 ried by the bracket, a pressure arm extendguide rod and cushioning springsmounted 10 ing from the sleeve towards the door, an adon the opposite ends of the guide rod. justable vpressure spring mounted on the Signed at Winnipeg, this 16th day of Feb i sleeve and engaging the pressure arm and ruary, 1921.

the bracket,l a horizontally disposed guide rod secured to and spaced from the door,'a THOMAS-HENRY FOLLIOTT; loop formed at the free end of the pressure In the presence off-F` arm and passing around the guide rod, a i GERALD S. ROXBURGH,

roller associated with the loop and riding the K. B. WAKEFIELD. 

